Article Photos: Heisman Trophy winner Johnny Manziel will predictably be unpredictable 2/17

OU COLLEGE FOOTBALL: Quarterbacks Landry Jones and Drew Allen sign autographs during the Meet the Sooners event inside Gaylord Family/Oklahoma Memorial Stadium at the University of Oklahoma on Saturday, Aug. 4, 2012, in Norman, Okla.  Photo by Steve Sisney, The Oklahoman